有个不必现错误，预览初步完成

core_form/frmimgshow/frmimgshow.h

@@ -8,32 +8,36 @@
 #include <QVBoxLayout>
 #include <QToolButton>
 #include <QSpacerItem>
-#include <QNetworkAccessManager>
-#include <QNetworkRequest>
 #include <QUrl>
-#include <QNetworkReply>
-#include <QClipboard>
+#include <QCheckBox>
 #include <QGuiApplication>
+#include "tchttpservice.h"
 
 class FrmImgShow : public QWidget
 {
     Q_OBJECT
 public:
-    explicit FrmImgShow(QString& url, QWidget *parent = nullptr);
+    explicit FrmImgShow(QWidget *parent = nullptr);
 
+    void loadImage(const QUrl& imageUrl);
+    void setImage(const QPixmap& pixmap);
+    void setLoadingState(bool loading);
+
+    QSize sizeHint();
 private:
     QLabel* labImg;
-    QToolButton* btnCopy;
-    QToolButton* btnDelete;
+    // QLabel* labLoading;
+    // QMovie* movieLoading;
+
+    QPushButton* btnCopy;
+    QPushButton* btnDelete;
     QSpacerItem* horizenSpacer;
     QHBoxLayout* hLayout;
+    QCheckBox* ckbSelect;
     QVBoxLayout* vLayout;
 
-    QNetworkAccessManager* manager;
-    QString url;
-
 protected:
-    virtual bool eventFilter(QObject* watched, QEvent* event);
+    // virtual bool eventFilter(QObject* watched, QEvent* event);
 
 private slots:
     void onFinished(QNetworkReply *reply);
@@ -41,10 +45,9 @@ private slots:
 private:
     void initForm();
     void initWidget();
-    void initManager();
-
-signals:
 
+    QString m_requestId;
+    QUrl m_currentUrl;
 };
 
 #endif // FRMIMGSHOW_H